https://forums.autodesk.com/t5/autocad-forum/drawing-a-circle-in-2d-based-on-a-3d-picture-where-circle-is-on/m-p/5578320#M333505 <P>Hello,</P><P>So I'm in intro to autocad and my professor isn't willing to help us at all. He believes we should figure out how to use it because that's the way he learned autocad. I am struggling with the concept of representing a circle in 3d onto a 2d platform. Could somebody help me and tell me how to do this? I realize this question is not clear so I posted 2 pictures (1 with the figure, the next with the answer) to better identify my question.</P><P>&nbsp;</P><P><IMG border="0" src="https://forums.autodesk.com/t5/image/serverpage/image-id/163006iBE1115382CD92945/image-size/original?v=mpbl-1&amp;px=-1" title="Screen Shot 2015-04-09 at 4.26.53 PM.png" alt="Screen Shot 2015-04-09 at 4.26.53 PM.png" /><IMG border="0" src="https://forums.autodesk.com/t5/image/serverpage/image-id/163007iD2B846358C02D8E1/image-size/original?v=mpbl-1&amp;px=-1" title="Screen Shot 2015-04-09 at 4.26.53 PM.png" alt="Screen Shot 2015-04-09 at 4.26.53 PM.png" /></P><P>My question is how do I determine the width and length of that oval representing the circle in the 3ds picture? Thanks for any help in advance!</P><P>&nbsp;</P><P>Bonus question: For the hidden circle in light blue on the top angle representation, why is it an oval? Wouldn't you be looking straight down so it should be a circle?</P> Thu, 09 Apr 2015 20:50:16 GMT Anonymous 2015-04-09T20:50:16Z